Patent application number | Description | Published |
20080196983 | Brake Actuating Unit For Actuating A Motor Vehicle Brake System - Disclosed is a brake actuating unit for actuating a motor vehicle brake system of the ‘brake-by-wire’ type. The system includes a brake booster which is operable in response to the driver's wish both by a brake pedal and by an electronic control unit. A device is provided to decouple a force-transmitting connection between the brake pedal and the brake booster in the ‘brake-by-wire’ operating mode. A master brake cylinder connected downstream of the brake booster, a device to detect a deceleration request of the driver, and a pedal travel simulator which interacts with the brake pedal and due to which a resetting force acting on the brake pedal can be simulated in the ‘brake-by-wire’ operating mode independently of an actuation of the brake booster, and which can be enabled in the ‘brake-by-wire’ operating mode when the force-transmitting connection between the brake pedal and the brake booster is decoupled and can be disabled outside the ‘brake-by-wire’ operating mode. The pedal travel simulator ( | 08-21-2008 |
20080217122 | Brake Actuation Unit for Actuating a Motor Vehicle Brake System - The invention relates to a brake actuation unit for actuating a ‘brake-by-wire’ type brake system for a motor vehicle comprising
| 09-11-2008 |
20100133897 | Actuating Unit for a Motor Vehicle Brake System - In order to increase the operational safety of a device which is used in a brake system of the “brake-by-wire” type and has the purpose of activating and deactivating a pedal travel simulator, an articulated connection which permits an all around pivoting movement of a piston rod is provided between a piston and the piston rod which activates the latter. | 06-03-2010 |
20100164277 | Servo Brake - A brake booster for a motor vehicle brake system of the brake-by-wire type, which can be activated both by means of a brake pedal and as a function of a driver's request, as well as independently of the driver's wish by means of an electronic control unit, wherein the coupling of the brake pedal, or of a force transmitting part which is permanently connected to the brake pedal, to an input member of the brake booster is embodied in such a way that the brake pedal or the force transmitting part can carry out a limited relative movement with respect to the input member. In order to minimize the friction which occurs between the force transmitting part and the input member when the brake booster is activated, the force transmitting part, and/or the input member of the brake booster are/is provided in the region of the relative movement of the two parts with respect to one another with means which reduce friction which occurs during the relative movement of the parts with respect to one another. | 07-01-2010 |
20100200342 | BRAKE SYSTEM OF THE BRAKE-BY-WIRE TYPE - A brake system of the brake-by-wire (BBW) type for a vehicle having a brake pressure signal generator which can be activated by a brake pedal and can be connected to wheel brakes outside the BBW operating mode, having a pressure source which can be actuated by an electronic control unit and can be connected to the brakes of the vehicle in the BBW operating mode, having provisions for sensing a driver's deceleration request and having a pedal travel simulator which interacts with the brake pedal. A restoring force acting on the brake pedal can be simulated in the BBW operating mode independently of the actuating of the pressure source, and having a device which can be actuated by the electronic control unit and which permits activation of the pedal travel simulator in the BBW operating mode and deactivation of the pedal travel simulator outside the BBW operating mode. | 08-12-2010 |
20100251848 | SERVO BRAKE - A brake booster for a motor vehicle brake system of the “brake-by-wire” type, which can be activated, on the one hand, by a brake pedal and, on the other hand, as a function of a driver's request, as well as independently of the driver's will by an electronic control unit, wherein the coupling of the brake pedal to an input element of the brake booster is embodied by a piston rod head provided with longitudinal guide openings, in such a way that a limited relative movement of the brake pedal is possible with respect to the input element, as a result of which, in particular in the “brake-by-wire” operating mode, decoupling of the force-transmitting connection between the brake pedal and the input element is ensured. | 10-07-2010 |
20120007419 | "BRAKE-BY-WIRE" TYPE BRAKE SYSTEM - A “brake-by-wire” type brake system for a motor vehicle, having a brake pressure sensor which can be activated by a brake pedal of a pedal unit and can be connected to wheel brakes of the vehicle outside the “brake-by-wire” operating mode, having a pressure source which can be actuated by an electronic control unit and can be connected to the wheel brakes of the vehicle in the “brake-by-wire” operating mode, and having a pedal travel simulator which interacts with the brake pedal and is formed by at least one simulator element, and a restoring force which acts on the brake pedal independently of the actuation of the pressure source can be simulated in the “brake-by-wire” operating mode. In order to provide a simpler and more cost-effective “brake-by-wire” type brake system, a force/travel characteristic of the pedal travel simulator is provided in a controllable fashion. | 01-12-2012 |
20120102942 | BRAKE ACTUATION UNIT FOR ACTUATING A MOTOR VEHICLE BRAKE SYSTEM - A brake actuation unit for actuating a motor vehicle brake system of the “Brake-by-wire” type, has a brake booster which can be actuated both by a brake pedal and by an electronic control unit as a function of a driver's request and has a piston rod. A mechanism is provided for decoupling a force-transmitting connection between the brake pedal and a brake booster in the “Brake-by-wire” operating mode. A distance ‘a’ is provided in order to decouple the brake pedal in the “Brake-by-wire” operating mode from reaction forces of the motor vehicle brake system. A securing element, which has a funnel-shaped receptacle oriented in the direction of the piston rod, is attached to the brake pedal to guide an end of the piston rod. | 05-03-2012 |
20120117961 | BRAKE ACTUATOR UNIT FOR ACTUATING A MOTOR VEHICLE BRAKING SYSTEM OF THE "BRAKE-BY-WIRE" TYPE - A brake actuator unit for actuating a motor vehicle braking system of the “brake-by-wire” type, having a brake booster which can be actuated by a brake pedal and by an electronic control unit as a function of a driver's request and has a piston rod, a master brake cylinder arranged downstream of the brake booster, and a pedal travel simulator which interacts with the brake pedal and is arranged in parallel with the piston rod and by which, in the “brake-by-wire” mode, a restoring force acting on the brake pedal can be simulated independently of actuation of the brake booster. In order to decouple a force-transmitting connection between the brake pedal and the brake booster in the “brake-by-wire” mode, a distance ‘a’ is provided between the brake pedal and a component arranged downstream in the force flux and assigned to the brake booster. | 05-17-2012 |